EP0784410A3 - Verarbeitung von Bildkodiertendaten - Google Patents

Verarbeitung von Bildkodiertendaten Download PDF

Info

Publication number
EP0784410A3
EP0784410A3 EP97300107A EP97300107A EP0784410A3 EP 0784410 A3 EP0784410 A3 EP 0784410A3 EP 97300107 A EP97300107 A EP 97300107A EP 97300107 A EP97300107 A EP 97300107A EP 0784410 A3 EP0784410 A3 EP 0784410A3
Authority
EP
European Patent Office
Prior art keywords
quantized
coefficients
oddification
coefficient
decoders
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97300107A
Other languages
English (en)
French (fr)
Other versions
EP0784410A2 (de
Inventor
Caspar Horne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tektronix Inc
Original Assignee
Tektronix Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tektronix Inc filed Critical Tektronix Inc
Publication of EP0784410A2 publication Critical patent/EP0784410A2/de
Publication of EP0784410A3 publication Critical patent/EP0784410A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP97300107A 1996-01-11 1997-01-09 Verarbeitung von Bildkodiertendaten Withdrawn EP0784410A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US584494 1984-02-28
US08/584,494 US5822005A (en) 1996-01-11 1996-01-11 Pre-oddification

Publications (2)

Publication Number Publication Date
EP0784410A2 EP0784410A2 (de) 1997-07-16
EP0784410A3 true EP0784410A3 (de) 1999-01-13

Family

ID=24337550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97300107A Withdrawn EP0784410A3 (de) 1996-01-11 1997-01-09 Verarbeitung von Bildkodiertendaten

Country Status (2)

Country Link
US (1) US5822005A (de)
EP (1) EP0784410A3 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3518717B2 (ja) * 1996-09-20 2004-04-12 ソニー株式会社 動画像符号化装置および方法、並びに動画像復号化装置および方法
US7269219B1 (en) 1997-02-14 2007-09-11 At&T Corp. Non-linear quantizer for video coding
US6347116B1 (en) * 1997-02-14 2002-02-12 At&T Corp. Non-linear quantizer for video coding
JPH11122624A (ja) * 1997-10-16 1999-04-30 Matsushita Electric Ind Co Ltd ビデオデコーダ処理量を低減する方法および装置
JP3209171B2 (ja) * 1998-01-08 2001-09-17 日本電気株式会社 動画像符号化装置
JP4099682B2 (ja) 1998-09-18 2008-06-11 ソニー株式会社 画像処理装置および方法、並びに記録媒体
US6909812B1 (en) 2000-07-13 2005-06-21 Lucent Technologies Inc. Methods and apparatus for nearly lossless-concatenated block transform coding
US6810086B1 (en) 2001-06-05 2004-10-26 At&T Corp. System and method of filtering noise
US7773670B1 (en) 2001-06-05 2010-08-10 At+T Intellectual Property Ii, L.P. Method of content adaptive video encoding
US6968006B1 (en) 2001-06-05 2005-11-22 At&T Corp. Method of content adaptive video decoding
DE102006049232B4 (de) * 2006-10-18 2010-02-04 Ods Technology Gmbh Verfahren und Vorrichtung zur Vermeidung von Fehlern beim Runden von Werten nach Durchführung einer inversen diskreten Kosinus-Transformation
EP2222086A1 (de) * 2009-02-18 2010-08-25 EcoDisc Technology AG Verfahren und Vorrichtung zur Vermeidung von Rundungsfehlern nach Durchführung einer inversen diskreten orthogonalen Transformation
JP5642105B2 (ja) * 2012-03-29 2014-12-17 京セラドキュメントソリューションズ株式会社 画像処理装置および画像形成装置
US10531099B2 (en) * 2016-09-30 2020-01-07 The Mitre Corporation Systems and methods for distributed quantization of multimodal images

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671816A1 (de) * 1993-09-28 1995-09-13 Sony Corporation Gerät zur kodierung/dekodierung mit hoher wirkung
EP0674447A2 (de) * 1994-03-21 1995-09-27 AT&T Corp. Bewegtbildkompressionssystem mit Fehlanpassungskontrolle von der Inverse diskreter Cosinus-Transformation
US5481553A (en) * 1993-03-01 1996-01-02 Sony Corporation Methods and apparatus for preventing rounding errors when transform coefficients representing a motion picture signal are inversely transformed

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002210A1 (en) * 1985-10-02 1987-04-09 Deutsche Thomson-Brandt Gmbh Process for correcting transmission errors
US5218650A (en) * 1991-01-02 1993-06-08 Ricoh Corporation Quantization method for use in image compression
KR950010632A (ko) * 1993-09-17 1995-04-28 배순훈 동영상부호화기

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5481553A (en) * 1993-03-01 1996-01-02 Sony Corporation Methods and apparatus for preventing rounding errors when transform coefficients representing a motion picture signal are inversely transformed
EP0671816A1 (de) * 1993-09-28 1995-09-13 Sony Corporation Gerät zur kodierung/dekodierung mit hoher wirkung
EP0674447A2 (de) * 1994-03-21 1995-09-27 AT&T Corp. Bewegtbildkompressionssystem mit Fehlanpassungskontrolle von der Inverse diskreter Cosinus-Transformation

Also Published As

Publication number Publication date
EP0784410A2 (de) 1997-07-16
US5822005A (en) 1998-10-13

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